I know many of my five loyal readers (or is it six now?) will think these are theoretical questions, so I will just tell you they aren't. Feel free to chime in. You can email me directly or comment here so more of us can have a conversation that includes more people.
How many times do you try to make friends with someone before you quit?
How many times to you try to get included in an activity or conversation before you stop?
How many times do you let someone excuse themselves because they just HAVE to do something (and possibly even name what it is) to find them talking to somebody else for quite some time after that? So you know they haven't made time for you, but they have made time for this other person... and you even come back over two hours later and they are just chatting...
When you are in close proximity to people that won't let you in but keep posting on their blogs to "come join our community", what do you do?